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hey-api

From public sources

👨‍🚀 Turn API specifications into production-ready SDKs, validators, mocks, and more. 20+ plugins. Millions of weekly npm downloads. Used by Vercel, OpenCode, PayPal, AWS, Autodesk, and many more.

CLI toolCategory: Developer Tools · Documentation toolsOpen sourcedata checked Oct 16, 2026
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Overview

  • api-client
  • code-generation
  • codegen
  • developer-tools
  • openapi
  • python
  • sdk
  • sdk-generator
  • swagger
  • typescript

Installation

Commands are shown, never run by the marketplace. Check them against the official documentation.
  • Official websiteFrom public sourcesfrom catalog metadata
    heyapi.dev/ ↗
  • Language package registrypythonFrom public sourcesfrom the package manifest — publication on the registry is not verified
    pipx install hey-api-dev

    Not verified: check that this package in the registry belongs to this project before installing.

    pypi.org/project/hey-api-dev/ ↗
  • Build from sourceFrom public sourcesfrom catalog metadata

    Build from source: no validated build recipe — follow the repository instructions.

    github.com/hey-api/hey-api ↗

Compatibility

Unknown means no evidence was found — not that the product is incompatible.
PlatformStatusArchitectureEvidenceConfidence
WindowsUnknown———
macOSUnknown———
LinuxUnknown———
Container (OCI)Unknown———
PythonCompatible—package manifest: pyproject.toml name0.60

Releases

checked Oct 30, 2026
v1.3.1LatestFeb 23, 2026Official source ↗

Files in 1.3.1

This release has no attached files.

Release history

Quality profile

algorithm quality-v1.0 · assessed Oct 16, 2026
Quality Score85
Risk Score0
Confidence 1.00
Quality Score and Risk Score are different measures. A high score does not guarantee safety.

Score components

Maintenance · 2020
last activity 15 days ago
Documentation · 1515
README 7188 chars, description present
Ready to use · 156
install instructions: no; releases: yes
Metadata · 1010
4/4 of description, homepage, license, topics
Releases · 1010
10 release(s), latest 116 days ago
Category confidence · 105
classifier confidence 0.5
Adoption · 109
5498 stars (log-dampened, 10k = max)
License clarity · 55
SPDX MIT
Community · 55
issues enabled, 445 forks

License

MIT
Known licensefrom the repository host

This is the catalog policy status, not legal advice.

Sources

github.com/hey-api/hey-apiPrimary★ 5,498 starslast activity Sep 30, 2026Primary repository · Confidence 1.00

Reviews

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README

From hey-api/hey-api · license MIT · fetched Oct 30, 2026

About

Hey API is an ecosystem for turning API specifications into production-ready code. It's trusted by thousands of companies – from YC startups to Fortune 500 enterprises – and powers products used by millions worldwide.

This is the monorepo containing all open source Hey API packages. For package-specific documentation and quick start guides, see the individual repositories below.

Packages

Highlights

  • production-grade code that compiles
  • runs in any Node.js 22+ environment
  • accepts any OpenAPI specification
  • core plugins for SDKs
  • HTTP clients for Fetch API, Axios, Angular, Next.js, Nuxt, HTTPX, and more
  • Zod schemas, TanStack Query hooks, Pydantic models, and 20+ plugins to reduce third-party boilerplate
  • highly customizable via plugins

Libraries

Contributing

Want to see your code in products used by millions?

Start with our Contributing guide and release your first feature.

Sponsors

Partners behind the future of API tooling. Become a sponsor.

License

Released under the MIT License.

Open the repository ↗